• Acta Photonica Sinica
  • Vol. 51, Issue 10, 1014008 (2022)
Hongxiang LIN1、2, Xiaohui WEI1、2、*, Tianfa LIAO1、3, Wenyuan WANG1, Juan DU1, and Mingliang YANG4
Author Affiliations
  • 1College of Electronic Information and Electrical Engineering,Huizhou University,Huizhou,Guangdong 516007,China
  • 2Guangdong Key Laboratory of Electronic Functional Materials and Devices,Huizhou,Guangdong 516007,China
  • 3Guangdong Heavy Ion Accelerator Engineering Research Center,Huizhou,Guangdong 516007,China
  • 4School of Information Engineering,Guangdong University of Technology,Guangzhou 510006,China
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    DOI: 10.3788/gzxb20225110.1014008 Cite this Article
    Hongxiang LIN, Xiaohui WEI, Tianfa LIAO, Wenyuan WANG, Juan DU, Mingliang YANG. Free Electron Laser Undulator Based on Grating Structure(Invited)[J]. Acta Photonica Sinica, 2022, 51(10): 1014008 Copy Citation Text show less
    The electron beam trajectory in undulator and micro-undulartor
    Fig. 1. The electron beam trajectory in undulator and micro-undulartor
    Distribution of electric field on grating surface
    Fig. 2. Distribution of electric field on grating surface
    Electron beam bunching
    Fig. 3. Electron beam bunching
    Electron beam trajectory
    Fig. 4. Electron beam trajectory
    Distribution of electron beam energy and variation of beam energy vs.Z position
    Fig. 5. Distribution of electron beam energy and variation of beam energy vs.Z position
    ParameterValueNoteParameterValueNote
    λ1 500 nmWavelength of laserτ100 fsPulse length
    n3.5Refractive indexm2Integer
    hλ/4Distance between beam and grating surfaceHλ/2High of grating
    4dλConstrain of gratingW3λ/7Thickness of substrate
    Table 1. Parameter of laser and grating
    ParameterValueNoteParameterValueNote
    E010 MeVAverage initial energy of electron beamE800 MV/mLaser amplitude
    γ020.57Lorentz factor of initial beamγ20.185Lorentz factor of final beam
    L9 μmUndulator lengthDistributionuniformmDistribution of initial bunch
    Table 2. Parameter of particle tracking
    Hongxiang LIN, Xiaohui WEI, Tianfa LIAO, Wenyuan WANG, Juan DU, Mingliang YANG. Free Electron Laser Undulator Based on Grating Structure(Invited)[J]. Acta Photonica Sinica, 2022, 51(10): 1014008
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